Kondo Quantum Dots and the Novel Kondo-doublet interaction

Abstract

We analyze the interactions between two Kondo Quantum Dots connected to a Rashba-active Quantum Wire. We find that the Kondo-doublet interaction, at an inter-dot distance of the order of the wire Fermi length, is over an order of magnitude greater than the RKKY interaction. The effects induced on the Kondo-doublet interaction by the wire spin-orbit coupling can be used to control the Quantum Dots spin-spin correlation. These results imply that the widely used assumption that the RKKY is the dominant interaction between Anderson impurities must be revised.

4 pages, 4 figs, accepted for publication in PRL. title changed and text polished

References in corpus (12)

• Tunable Non-local Spin Control in a Coupled Quantum Dot System
• Twisted exchange interaction between localized spins embedded in a one- or two-dimensional electron gas with Rashba spin-orbit coupling
• Observation of the Fano-Kondo Anti-Resonance in a Quantum Wire with a Side-Coupled Quantum Dot
• Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime
• RKKY and magnetic field interactions in coupled Kondo quantum dots
• Transport spectroscopy of Kondo quantum dots coupled by RKKY interaction
• Scaling of the low temperature dephasing rate in Kondo systems
• Non-local Control of the Kondo Effect in a Double Quantum Dot-Quantum Wire Coupled System
• Kondo screening cloud in a double-quantum dot system
• Tunable Exchange Interaction in Quantum Dot Devices
• Tuning the Non-local Spin-Spin Interaction between Quantum Dots with a Magnetic Field
• Design and control of spin gates in two quantum dots arrays

Cited by in corpus (13)

• Enhancement of the Kondo effect through Rashba spin-orbit interactions
• Kondo Cloud Mediated Long Range Entanglement After Local Quench in a Spin Chain
• Low-energy theory and RKKY interaction for interacting quantum wires with Rashba spin-orbit coupling
• The Two Dimensional Kondo Model with Rashba Spin-Orbit Coupling
• Electrically-controllable RKKY interaction in semiconductor quantum wires
• Transconductance of a double quantum dot system in the Kondo regime
• Spatial trends of non-collinear exchange coupling mediated by itinerant carriers with different Fermi surfaces
• Interplay between Kondo tunneling and Rashba precession
• Quantum correlations in nanostructured two-impurity Kondo systems
• Photoluminiscence of a quantum dot hybridized with a continuum
• Modified exchange interaction between magnetic impurities in spin-orbit coupled quantum wires
• Rashba-induced transverse pure spin currents in a four-terminal quantum dot ring
• Mass modification of itinerant carriers in RKKY oscillations induced by finite range exchange interactions